Feature:1. Bidirectional Detection Current: For users who detect charging and discharging, this test meter can easily detect bidirectional current without changing the wiring direction.2. Power Off Memory: The test meter has a power off memory function. After power off, it can memorize the AH and WH numbers before power off, which is convenient for observation and measurement.3. Safe to Use: The test meter has protection functions such as overvoltage, overcurrent, and overtemperature, and can flexibly turn on or off the output.4. Easy to Measure: The test meter can clear the time and AH number without affecting the measurement, and the AH number can be filled up without affecting the direct discharge measurement.5. Low Power Consumption: When necessary, you can turn off the LCD screen of the test meter to reduce the power consumption of the product.6. Can be Calibrated: The test meter supports online calibration, which is convenient for customers to correct errors in time and easy to use.Specification:Item Type: Multifunctional TesterMaterial: ABS, PCBModel: VA7550Display Mode: LCD displayVoltage: 0.01-500VCurrent: 0-1000ACapacity: 0.001AH-65000AHEnergy: 0.00KWH-99999.9KWHTime: 0-100 hoursPower Value: 99KWTemperature: 1-100 degrees CelsiusVoltage: 1%Current: 2%Temperature: 1Measurement Rate: 5 times per secondOVP (Overvoltage Protection): 0.01-500VLVP (Under Voltage Protection): 0.01-500VOCP (Over Charging Protection): 0-1000ANCP (Discharge Overcurrent Protection): 0-1000AOTP (Over Temperature Protection): 0-100 degrees CelsiusFeatures:1. BAT: Battery capacity value setting, this parameter is to set the total battery capacity measured.2. BPC: The percentage of the remaining capacity of the battery, you can set the remaining AH number of the battery according to this value.3. OPP: Set the overpower protection value. If the OPP value is set, when the actual output power value is greater than the set value, it will prompt overpower and cut off the relay (self configured).4. OVP: Set the overvoltage protection value. If the OVP value is set, when the actual measured voltage value is greater than the set value, it will prompt overvoltage and cut off the relay (self configured).5. LVP: Set the overvoltage protection value. If the LVP value is set, when the actual measured voltage value is less than the set value, it will prompt undervoltage and cut off the relay (self configured).6. NCP: Set the overvoltage protection value. If the NCP value is set, when the actual measured charging current value is less than the set value, it will prompt overcurrent and cut off the relay (self configured).7. OCP: Set the overvoltage protection value. If the OCP value is set, when the actual measured discharge current value is less than the set value, it will prompt overcurrent and cut off the relay (self configured).8. OTP: Set the over temperature protection value. If the OTP value is set, when the actual measured temperature value is greater than the set value, it will prompt over temperature and cut off the relay (self configured).9. ADS: Communication address code setting. When multi machine communication is different, multi machine communication can be realized by setting the address code.10. TTL: The default relay output state when the instrument is powered on, normally open or normally closed.11. CLR: No load current clearing function, if the actual no load current is not 0, use this function to clear the no load current.Package List:1 x Multifunctional Tester1 x Module1 x Flat Cable2 x Terminal Cable